Illuminant Invariant Recovery of Surface Reflectances and Estimation of Colorimetric Values from Image Signals |
| |
Authors: | Noriyuki Shimano |
| |
Affiliation: | (1) Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashi-osaka, Osaka 577, Japan |
| |
Abstract: | Computer simulation based on the finite-dimensional linear model for computational color constancy model has been carried out to estimate colorimetric values using image signals. We estimated the colorimetric values placing a reference object with known spectral reflectance in a scene under an unknown illuminant. It was found that prior knowledge of illuminants and surfaces of objects in a scene is not required for the estimation: any set of basis vectors to express the illuminants and any set of eigen vectors obtained by principal component analysis on data set of a color chart to represent the surfaces of different objects can be applied to the estimation. |
| |
Keywords: | device independent color reproductions colorimetric calibration computational color constancy colorimetric values image acquisition image recovery |
本文献已被 SpringerLink 等数据库收录! |